# SDR MYNR748KA

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 5, 2005
- Submitted: May 11, 2005
- Operation: General aviation
- Aircraft: [N4190P](https://openairdocs.org/aircraft/N4190P), registered now
- Make and model: Cessna 172R
- Registry model: [Cessna 172R](https://openairdocs.org/model/cessna-172r) (OpenAirDocs)
- Aircraft serial: 17280620
- Engine: Lyc IO360L2A
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Exhaust Valve
- Condition: Stuck
- Location: Nr 3 Cylinder
- Part time: 350 hours
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MYNR748KA

## Discrepancy

NR 3 CYLINDER EXHAUST VALVE STUCK AT 300.1 HRS.  NR 2 CYLINDER EXHAUST VALVE STUCK AT 351.1 HRS.  REMOVED NR 1 AND NR 4 FOR EVALUATION, CYLINDER SHOP FOUND PROBLEMS WITH THERE EXHAUST VALVES.  THESE WERE NEW SUPERIOR MILLENNIUM CYLINDER ASSEMBLIES INSTALLED AT ENGINE OVERHAUL 351.0 TSMOH. (K)

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